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  Distortion-Corrected High Resolution Zoomed fMRI at 9.4 T

Bause, J., In, M.-H., Ehses, P., Shajan, G., Speck, O., Pohmann, R., et al. (2015). Distortion-Corrected High Resolution Zoomed fMRI at 9.4 T. Poster presented at 23rd Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2015), Toronto, Canada.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-002A-45DB-7 Version Permalink: https://hdl.handle.net/21.11116/0000-0000-F14A-D
Genre: Poster

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http://www.ismrm.org/15/program_files/WedTP03.htm (Publisher version)
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 Creators:
Bause, J1, Author           
In, M-H, Author
Ehses, P1, Author           
Shajan, G1, Author           
Speck, O, Author
Pohmann, R1, 2, Author           
Scheffler, K1, Author           
Affiliations:
1Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              
2Dept. Empirical Inference, Max Planck Institute for Intelligent Systems, Max Planck Society, ou_1497647              

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 Abstract: High-resolution EPI at ultra-high field often suffers from distortions and requires a short time to k-space center in order to achieve the optimal BOLD contrast. In this work, zoomed functional imaging was combined with the point spread function mapping technique in order to obtain images with re-duced distortions acquired with the optimal TE for fMRI at 9.4T. The approach was tested in a functional experiment with 0.8 mm and 0.65 mm iso-tropic resolution. Activation maps obtained from the distortion corrected images showed a higher number of activated voxels then the maps from the undistorted images and match well with anatomy.

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 Dates: 2015-06-03
 Publication Status: Issued
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 Identifiers: BibTex Citekey: BauseIESSPS2015
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Title: 23rd Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2015)
Place of Event: Toronto, Canada
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Title: 23rd Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2015)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 2073 Start / End Page: - Identifier: -